patch 8.0.0275: the screen may be updated at the wrong timev8.0.0275

Problem:    When checking for CTRL-C typed the GUI may detect a screen resize
            and redraw the screen, causing trouble.
Solution:   Set updating_screen in ui_breakcheck().

1 files changed, 7 insertions, 0 deletions

diff --git a/src/ui.c b/src/ui.c
index ad2919052..4da79f0c1 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -363,12 +363,19 @@ ui_breakcheck(void)
     void
 ui_breakcheck_force(int force)
 {
+    int save_us = updating_screen;
+
+    /* We do not want gui_resize_shell() to redraw the screen here. */
+    ++updating_screen;
+
 #ifdef FEAT_GUI
     if (gui.in_use)
 	gui_mch_update();
     else
 #endif
 	mch_breakcheck(force);
+
+    updating_screen = save_us;
 }
 
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